Question

2) Calcule as expressões:
a) (+3)(-2)(-5)=
b) (-4)(+5)(-3)(-1)=
c) (-2)(-1)(-5)(+10) =
d) 73.(-21) =

Answer 1

a) (+3)(-2)(-5) = 30

b) (-4)(+5)(-3)(-1) = - 60

c) (-2)(-1)(-5)(+10) = - 100

d) 73.(-21) = - 73/21

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